On 2014-10-09 17:02:02 -0400, Robert Haas wrote: > On Thu, Oct 9, 2014 at 3:53 PM, Andres Freund <and...@2ndquadrant.com> wrote: > >> OK, here's an attempt at a real patch for that. I haven't perf-tested > >> this. > > > > Neato. With a really trivial SELECT: > > > > before: > > tps = 28150.794776 (excluding connections establishing) > > after: > > tps = 29978.767703 (excluding connections establishing) > > > > slightly more meaningful: > > > > before: > > tps = 21272.400039 (including connections establishing) > > after: > > tps = 22290.703482 (excluding connections establishing) > > > > So that's a noticeable win. Obviously it's going to be less for more > > complicated stuff, but still... > > > > I've not really looked at the patches though. > > Yeah, not bad at all for the amount of work involved. Want to > disclose the actual queries?
SELECT 1; SELECT * FROM smalltable WHERE id = xxx; The latter is something quite frequent in the real world, so it's not all academic... Greetings, Andres Freund -- Andres Freund http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
